Scope
ISO 3746:2010
Sound Power Level — Survey Method
This test determines sound power levels of noise sources using an enveloping measurement surface and sound pressure level measurements. It is a survey-grade method suitable for field measurements of machinery, equipment, and industrial sources in moderately reflective environments. The method is widely used for noise compliance verification, product development, and environmental impact assessments. Accredited testing ensures consistent, defensible results for regulatory compliance and product labeling. This method bridges the gap between laboratory-grade precision and practical field measurements.
What it measures
- Sound power level (Lw) in decibels
- A-weighted and frequency-weighted sound power
- Directional sound power distribution
- Acoustic performance of noise sources
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DIN EN ISO 3744
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BS EN ISO 3744
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NF EN ISO 3744
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UNI EN ISO 3744
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UNE EN ISO 3744
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NEN EN ISO 3744
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DIN EN ISO 3745
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BS EN ISO 3745
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NF EN ISO 3745
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UNI EN ISO 3745
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UNE EN ISO 3745
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NEN EN ISO 3745
1,670
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EDISON NEXT ENVIRONMENT
Active
DIN EN 14790
ISO 5667-5
DIN EN 14181
DIN EN ISO 16911-1
ISO 5667-11
+ 3 more
BS EN ISO 16283-1:2014+A1:2017BS EN ISO
BS EN ISO 16283-2:2020
BS EN ISO 140-4:1998
ISO 1407
BS EN ISO 9972:2015
+ 1 more
and Appx. 3 of HSG 227 (2004))
in Appendix 5 of HSG 227 (2004)
guides HSG 264 (2012) and
(HSG 264, 2012)
EFFICIENCE ET OPTIMISATION
Active
NF ISO 21438-3
NF X 43-264
NF ISO 21438-1
NF X 43-259
NF ISO 21438-2
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ELANOVA LAB
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DIN ISO 1817
DIN EN 15188
DIN ISO 1431-1
DIN EN 14671
DIN EN ISO 10140-2
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ELLAB
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Taupunkttemperatur
Widerstandssensor
–100 °C bis
> 140 °C bis
> 240 °C bis
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ELMTEC Ingenieurgesellschaft
Active
- Gleichspannung
Messgeräte > 0,004 V
> 0,33 V
> 33 V
> 330 V
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EMCCons RASEK
Active
- Gleichspannung
> 0,12 V
Vorverstärker > 1,2 V
> 12 V
> 120 V
+ 3 more
200 kg/h ≤ m ≤ 60000 kg/h
200 l/h ≤ Q ≤ 60000 l/h
200 kg/h ≤ m ≤ 30000 kg/h
200 l/h ≤ Q ≤ 30000 l/h
700 Pa ≤ P ≤ 2 MPa
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ENSATEC, S.L. (Unipersonal)
Active
UNE-EN 12211
UNE-EN 12210
UNE-EN 1026
UNE-EN 12207
UNE-EN 14608
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Environmental noise — determination of s
ISO 20906 : 2009-12 :
Railway brake — anti-slide device (UIC 5
Railway brake — magnetic track brakes (U
Railway brakes — conditions for homologa
Railway brakes — disc brake pads (UIC 54
− Durchfluss von Gasen
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EPTA NORD
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DIN CEN ISO 15216-2
ISO 19250
AOAC 2012.01 2016
DIN EN ISO 15587-1
EPA 300.1 1997
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UNE-EN 12350-2
UNE-EN 12504-1
UNE-EN 12390-2
UNE-EN 12390-3
UNE-EN 12350-1
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UNE-EN ISO 16283-1
UNE-EN ISO 16283-2
UNE-EN ISO 16283-3
UNE 74201
UNE-EN ISO 3382-2
UNE-EN ISO 6892-1
DIN EN 10002-1
ASTM E 8
ASTM E 208
ASTM E208-06
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ERC Testing
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DIN EN 1863-1
BS EN ISO 10077-1:2006
published 2024) for BS EN
DIN EN 1863-2
BS EN ISO 10077-2:2017
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ERGO Umweltinstitut
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DIN ISO 10381-5
DIN ISO 18400-102
DIN ISO 18400-104
DIN ISO 18400-105
DIN ISO 18400-203
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ESI Prüftechnik
Active
Sound intensity — scanning method (ISO 9
Härteprüfmaschinen
Kraft
einrichtungen *
Vibration measuring instruments — test m
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ETAS
Active
- Gleichspannung
Quellen und Messgeräte > 1 mV bis
> 10 mV bis
> 100 mV bis
> 10 V bis
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DIN EN ISO 6888-1
0.95) based on BS ISO 21527-2:2008
DIN EN ISO 6888-2
DIN ISO 16649-2
DIN EN ISO 19020
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UNE 64106
BS ISO 6731:2010
UNE-EN ISO 712
UNE-EN ISO 5534
ISO 13580
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DIN EN ISO 14403-2
DIN ISO 11464
DIN ISO 11465
NF T90-105-2
NF T90-004
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